Surface Ammonia (jag/L) Surface Ammonia (jug/L) 
30 
20 
10 
0 
Figure 3.2.15. Mean +1 SD surface ammonium compared among (A) all, 
California, Oregon, and Washington sample locations, and (B) California 
NMS, California non-NMS, Olympic Coast NMS, and Washington-Oregon 
non-NMS sample locations. SCB stations not included due to lack of 
ammonium data. 
B 
CA: NMS CA: nonNMS OCNMS WA-OR: nonNMS 
49 
